VowpalWabbit 9.11.2

Vowpal Wabbit

Vowpal Wabbit is an open-source machine learning library with a focus on online learning, contextual bandits, and reinforcement learning.

Installation

dotnet add package VowpalWabbit

Platform Support

All runtime packages are pulled in automatically when you install the main VowpalWabbit package.

Quick Start

Basic Regression

using VW;
using (var vw = new VowpalWabbit("--quiet"))
{
 vw.Learn("1 | feature1 feature2");
 vw.Learn("0 | feature3 feature4");
 var prediction = vw.Predict("| feature1 feature2");
}

Contextual Bandits (CB ADF)

using VW;
using (var vw = new VowpalWabbit("--cb_explore_adf --quiet"))
{
 var example = @"shared | user_age:25
 | action1 sport
 | action2 politics
 | action3 music";
 vw.Learn(example);
 var prediction = vw.Predict(example);
}

Save and Load Models

using (var vw = new VowpalWabbit("--quiet"))
{
 // ... train ...
 vw.SaveModel("model.vw");
}
using (var vw = new VowpalWabbit("--quiet -i model.vw"))
{
 var prediction = vw.Predict("| feature1 feature2");
}

Documentation

• C# Binding Wiki
• VW Documentation
• GitHub Repository

License

BSD-3-Clause